The research was carried out by the Irish Basking Shark Project, whose co-ordinator, Emmett Johnston, explained why the shark had travelled so far.

BBC: Donegal shark travels 3,000 miles to coast of Africa

Come in summer -- for a day walk, week walk or to finish the whole lot (about eight weeks) -- and you might see the benign fin of a basking shark cruise by the shore.

BBC: Walking Great Britain��s great coast